ingeltra,
im not sure if i cud help u well. but there r temporary remedies w/c i like to share. this regards to dns problem, bsod, hung system..etc...
1) BSOD or out of memory: i switched to avg from norton bec norton is resource hog and my server is only 500mhz. or if u like to stick with norton thats ok, juz disable it when installing wingate.
also, disabling "Enable additions to cache" also prevent bsod's & memory related issues on some system
2) DNS problem: i disabled wingate's dns and use
Analogx FastCache instead. i've been using wingate since version 3.x, not so happy w/ its dns performance.
lastly, always get ur driver's update directly from manufacturer's site, not from windows update :)